body {
  background-color: #16a085;
  margin: 0 auto;
  max-width: 760px;
}

html, body {
  -webkit-box-sizing: border-box;
  -moz-box-sizing: border-box;
  box-sizing: border-box;
}

*, *:before, *:after {
  -webkit-box-sizing: inherit;
  -moz-box-sizing: inherit;
  box-sizing: inherit;
}

body, input, button {
  font-family: Georgia, Helvetica;
  font-size: 17px;
  color: #ecf0f1;
}

h1 {
  margin-top: 20px;
  text-align: center;
}

h3 {
  background-color: rgba(255, 255, 255, 0.2);
  padding: 20px;
  text-align: center;
}

a,
a:hover {
  color: #ecf0f1;
}

pre code {
  color: #fff;
  font-size: 18px;
}

label {
  display: block;
  margin-bottom: 15px;
}

sub {
  display: block;
  margin-top: -10px;
  margin-bottom: 15px;
  font-size: 11px;
  font-style: italic;
}

.parent {
  background-color: rgba(255, 255, 255, 0.2);
  margin: 50px 0;
  padding: 20px;
}

.input {
  background-color: #ecf0f1;
  color: #16a085;
  padding: 10px;
}

input {
  outline: none;
  background-color: #ecf0f1;
  color: #16a085;
  border: 0;
  padding: 3px;
  margin: 5px 0;
}

button {
  background-color: #ecf0f1;
  color: #16a085;
  border: 0;
  padding: 18px 12px;
  margin-left: 6px;
  cursor: pointer;
  outline: none;
}

button:hover {
  background-color: #e74c3c;
  color: #ecf0f1;
}

.inline {
  display: inline-block;
}

.gh-fork {
  position: fixed;
  top: 0;
  right: 0;
  border: 0;
}

.nsg-tag {
  border-color: #16a085;
}

.nsg-invalid {
  border-color: #c00;
}
